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Browse Prior Art Database

Braille Type Element

IP.com Disclosure Number: IPCOM000093032D
Original Publication Date: 1967-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Emig, MB: AUTHOR

Abstract

A type element for forming Braille characters in a sheet of Braille paper stock 10 is provided. Paper stock 10 is held against a relatively soft, resilient typewriter platen 11. The type element comprises type slug 12 having a pair of curved surfaces 13. Each curved surface 13 has a curvature which corresponds to the curvature of the outer periphery of platen 11. Dot-shaped Braille embossing elements 14 project from each curved surface 13 of type slug 12 to provide upper and lower case Braille characters. When a Braille character is typed, the selected set of elements 14 punctures paper stock 10. The degree of embossing is accurately controlled and limited. This is because a curved surface 13 of type slug 12 has a relatively large area which engages paper stock 10 and presses against curved platen 11.

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Braille Type Element

A type element for forming Braille characters in a sheet of Braille paper stock 10 is provided. Paper stock 10 is held against a relatively soft, resilient typewriter platen 11. The type element comprises type slug 12 having a pair of curved surfaces 13. Each curved surface 13 has a curvature which corresponds to the curvature of the outer periphery of platen 11. Dot-shaped Braille embossing elements 14 project from each curved surface 13 of type slug 12 to provide upper and lower case Braille characters. When a Braille character is typed, the selected set of elements 14 punctures paper stock 10. The degree of embossing is accurately controlled and limited. This is because a curved surface 13 of type slug 12 has a relatively large area which engages paper stock 10 and presses against curved platen 11.

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